yashsingh1/xdaforums huggingface dataset:
[Dell Venue] NotQuiteANoob:
Noob Question: Now that the Venue is rooted - any suggestions to increase battery?

I'm fairly new to Android. I started by rooting my Kindle Fire 1st gen which currently runs CM11 i.e. Kitkat. I haven't done a head to head test but I swear that 3 yr old KF battery lasts longer that the 4 hrs or so I get on the Venue. Now that my Venue is rooted, are there any simple tricks or apps to increase the battery life other than turn off Wifi and turn down the screen? I notice a bunch of apps running in the background. I don't want to uninstall the apps because I use them but how can I prevent them from running all the time?
[Dell Venue] chairsz:
you can go in settings/apps and force stop and disable any app you want without uninstalling it. tthis can save a enormous amount of bat life if you target the most resource hungry apps that you don't use often.

bat life beyond the obvious "battery life will run down faster on heavy use" saying, we have to realize that optimization and other not so obvious software tweaks can greatly conserve battery life way beyond the wifi off and screen brightness 0 % avenue. remember bat usage varys tablet to tablet 4100mah to 4100 mah,

im getting good enough or great enough bat iife for my usage while others with a simila setup/usage pattern may b getting lower numbers. no review can be 100% accurate as to how long a tabby bat can last and comparing it to previous tabs again isn't really fair to the device

have wifi on only when needed like web browsing or dl stuff,

set wifi to turn off when device sleeps

use the auto brightness setting to control brightness of screen settings/display

remember to swipe away apps your not using regularly

use a cache and ram cleaner app to clean up every few hours

these kinda things help wth battery life

you can also go the route of opening tabby up and finding a compatible bat online and swap it out. there's a YouTube vid for this procedure.

---------- Post added at 08:27 PM ---------- Previous post was at 08:26 PM ----------

I believe battery capacity is 4100mah

and a custom rom CAN greatly improve battery life but it has to be a full on real customisation meaning full acess to a custom kernel, custom rom image and the works. just about every non stockish rom around xda that's not extreme gaming performance focused boast about better bat life with a custom rom, again this will vary. just look around xda the proof is in da pudding

I myself have flash quite a few roms on quite a few devices to have seen this fact proven.
[Dell Venue] XDA_Insomniac:
:(

Hi all. In late november I got a venue 7. I've been following this thread for very long and have just decided to post on here. I tried every method that was posted here and still nothing, my venue 7 is running 4.2.2 and I just want it rooted :(

---------- Post added at 08:23 PM ---------- Previous post was at 08:16 PM ----------

Signature bugs :( I think venue 7's are unrootable
[Dell Venue] jayjr1105:
Or you're patched beyond the factory release. There's one 4.2.2 version before 4.3 that is un-rootable as well I think.
[Dell Venue] zarko47:
Battery life

With my Venue 8 I can browse maximum 4 hours. Before android 4.3 firmware it lasts only 3 hours. It will be nice if you can test your tablet exactly one day only browsing to see how long battery will last. I believe it will be interesting for other users too, because lot of them have complain on battery capacity.
[Dell Venue] jayjr1105:
My opinion on the Venue battery life is this...

#1 its a stock ROM, even though Dell spared us of bloatware, stock ROM's are still very average battery life because of the lack of governors and jazzed up kernels.

#2 This is a very powerful processor and its x86 at that. Android is optimized for ARM cpu's not Intel/AMD. So the fact that this is a dual core 2.0GHz with hyperthreading (4 threads total) running an operating system that's rarely used with it might be a big reason for poor battery life. If you download CPU-z from the play store, you'll see the 4 cores and they never go below 800MHz. Not sure about sleep/deep sleep but a tablet CPU should idle lower.

#3 Wakelocks. In layman's terms, these are things that will keep your tablet from going into deep sleep. It's probably the #1 reason people complain about android battery life in general. People download apps and never think twice to go into settings and disable things that have the app constantly updating/syncing/notifying. There are apps in the play store that will detect wakelocks and disable them.

For the people who have root on 4.2.2. Can you guys flash a recovery with flashify? Maybe something that works on other x86 devices? Just a thought.
[Dell Venue] aniym:
What I don't get is why OEMs like Dell and HP that are trying to succeed in the market offer ZERO cooperation with the modding community. They clearly don't know how to do software, and yet refuse to crowdsource solutions by making the tablets easy to root. Sony and Samsung offer open source release centers that help the good people at XDA and elsewhere to create high quality, stable custom ROMs. Maybe I should be supporting their products; the price premium certainly seems worth it.

Even with the bloated Touchwiz skin, most reviews I've seen say it gets a solid 8-9 hours of uninterrupted screen on time. And like what you'd expect from an iPad, or really any good tablet, the battery does not degrade much while in sleep mode. With the Venue 8 however (and another Lenovo tablet I tried) you can expect to lose 10-20% overnight even in airplane mode. Ridiculous.
[Dell Venue] deansouth8:
Don't you still need a custom recovery like CWM or TWRP to restore from disaster?
[Dell Venue] sfleury:
Flashify does not currently support backup or restore of the kernel or recovery on this device, not sure if it would try to write an image to boot or recovery but without a reliable way to get back to stock if it fails I'm not in a big rush to try it.
[Dell Venue] hefftone:
I downloaded CPU-Z from the play store...under system, root access = yes....but I haven't done anything root related yet.

Thought I'd ask if others showed the same or if its worth investigating.

Edit: no root access per root checker app.

Tapatalk/Android/DV8_JB_4.2.2
[Dell Venue] social-design-concepts:
deleted
[Dell Venue] kwarizmi:
I just tried it. It did not work for me. Still no root.

---------- Post added at 12:30 PM ---------- Previous post was at 12:26 PM ----------

For me, CPU-Z shows "Root Access No". Interestingly, CPU-Z shows that my device (Dell Venue 8, updated to 4.3) has 4 cores.

I think I will uninstall CPU-Z.
[Dell Venue] twilkinson:
Four cores because its dual core with hyperthreading
[Dell Venue] Tornade69:
here's screenshot for this : https://www.dropbox.com/s/spyal9cx3ui70dm/2014-01-05 14.20.34.png
[Dell Venue] deansouth8:
Weird ADB Mode

Anyone ever try rooting from ADB in this way?

Make sure you are in Droidboot

Connect with fastboot and type the following command...

From droidboot

fastboot oem startftm

It should exit so, type...

adb devices

NICE! You should see the device connected...

adb shell

You should now be at an adb shell

Anyone know what mode this is or if you can get root installed in this manor? Post about this please.
[Dell Venue] deansouth8:
I don't know what you would get. I have a device that is in a bootloop that's why I'm tinkering so much.

I'll upload what I get...
[Dell Venue] deansouth8:
Researching what can be done in "Field Test Mode" the startFTM
[Dell Venue] sfleury:
Your unpack doesn't work on the image from the partition I think is the boot partition (mmcblk0boot0), or the other unmountable images I have pulled. How did you decide 3e0 is the more "common" android padding? Did you just assume that value because that was what turl used for the 7900, or did you have some more official source? Oh, and for what its worth the RAZR offset of 0 doesn't work either.
[Dell Venue] deansouth8:
Thanks I looked them over. Looks like real Linux scripts. Not in a position to run a Linux box against my device but, thank you anyway. Reviewed them and can't make heads or tails of what they do but, looked at a lot of the commands they run. Most look like they require root or fastboot to do something besides format cache partition.

After finding my super secret way to enable adb I think what is preventing root is this in default.prof.

ro.adb.secure=1

Not sure though.
[Dell Venue] cobyman7035:
Unhackable?

Via my Iconia™ A200 tablet using tapatalk²
[Dell Venue] stang48317:
Everything is hackable... It just takes finding the vulnerability.
[Dell Venue] stang48317:
I just got the 4.3 update on my Venue 7 so it looks like they are pushing it again... If they even stopped
[Dell Venue] chairsz:
The 4.3 update is flowing to NY tabby to currently completely stock with no update period and rooted, I know if I update I'll lose root so I don't know if u should. File is about 139 MB anybody think or knows if this brings the full 4.3 JB features as google says? Even. Good multi user, and the other dozen or so native 4.3 apps and features....
[Dell Venue] NotQuiteANoob:
JB 4.3 installed today, bye bye root.

I have a 32GB Venue 8 3830. I was one of the lucky ones that achieved root but couldn't get the 4.3 JB update. Today the 4.3 JB update downloaded and installed and also removed root.
[Dell Venue] chairsz:
Have you tried any of the previously mentioned root methods as yet ?
[Dell Venue] 3dupunk:
The battery life is quite good imho. I have gotten 8+ hours of screen on time but I only read, browse the web and watch movies as well as t.v. shows on my venue 8. The biggest tip in regards to battery life is to manually adjust the brightness, it makes a big difference on my device though YMMV.
[Dell Venue] sfleury:
That's too bad, it was discussed earlier in the thread that upgrading will undo the root changes, the update script is pretty deliberate about it.

Unfortunately the exploit that worked in 4.2.2, appears to be closed in 4.3, but there should be no harm if you want to try it anyway.
[Dell Venue] Tornade69:
Good to know... is the update install by itself or it ask for confirmation ??? if yes, is there's any way to freeze an apk to stop the update process ??? i'm rooted and don't want to lose it!

Thanks
[Dell Venue] NotQuiteANoob:
In my case, I initiated the update

I initiated it by checking for updates after I saw people reporting the update was flowing out again today.

---------- Post added at 08:09 PM ---------- Previous post was at 07:57 PM ----------

Using Cydia Impactor doesn't work anymore to re-root my Venue after I updated to 4.3. Also Bluebox Security Scanner and SRT AppScanner no longer report the vulnerability that previously allowed root.
[Dell Venue] castnorth:
Just got pushed an ota update of 2.2 mb to my Venue 8 running 4.3. Any ideas on what for?

Sent from my Venue 8 3830
[Dell Venue] NotQuiteANoob:
Probably that's an NSA package :D
[Dell Venue] sfleury:
Looks like all the required information is in the bootstub.h header file included in the device_intel.tar.gz that is part of the kernel sources Dell released. As soon as I have a chance I will try to re-implement the unpack with that info.
[Dell Venue] jayjr1105:
My venue 8 also just downloaded a 2MB patch.
[Dell Venue] castnorth:
Just saw in another post that the update takes 4.3 1.15... to 4.3 1.16... no changes noticed as of yet.
[Dell Venue] spaced+:
We can probably get access to all of the fast boot commands by using the Intel specific fastboot tool and using it over Ethernet as it is mentioned in the Intel 01 page.

Luckily there's a rocket fish USB to Ethernet with asix chip(well supported) at bestbuy for only 3.99. I'll be then sparing a micro USB cable since I have no OTG cable.

Looks like other Intel tablet don't make use of droidboot for rooting so there's not that much information about using droidboot over Ethernet online.

I will have to also setup an Android environment to build an engineering image that will allow "adb root". This image should be able to be flashed with Intel's tool.
[Dell Venue] spaced+:
Cool. Do you think that people without root should be able to flash this like an update.zip? Because there doesn't seem to be any other method of flashing. Since the regular fastboot doesn't flash.
[Dell Venue] vilehost:
I wanna take a look at that intel flash tool.

I still have my softbricked one, a new rooted one. and fedEX should be dropping off another untouched one within the next 3 days.

I tried flashing with fastboot, boot recovery ramdisk system kernel, the only thing that would actually run with out error and write was /system, flashing anything else from fastboot or droidboot stock recovery resulted in errors.

I don't know if the others wouldn't write because it wasn't device specific and just generic x86 build, but I cant make sense of it because /system wrote fine which was extracted with others in question
[Dell Venue] NotQuiteANoob:
Good to see the Rocket Scientists are on the job now!

Following this is making my brain hurt :eek: but I eagerly anticipate the final result. TIA and Kudos!
[Dell Venue] jcase:
Hi, I'm ready to root this device. Can someone who wishes to test ping me on freenode, in #motox?

I have a couple medfield exploits that will likely work
[Dell Venue] jayjr1105:
Shouldn't we probably have our own thread by now? Technically we have root and clearly tons of people own the device.

Also, good to see Dev's jumping in on the action. Only a matter of time now :good:
[Dell Venue] jcase:
Ok, I have root on the new 4.3 firmwares for the Dell tablets, but I am having a stability issue with it at this point.

If anyone knows where I can find one of these tablets at a low price, I will order one and finish the exploit.
[Dell Venue] jayjr1105:
Woo Hoo!
[Dell Venue] megaghostgamer:
The most recent method that has been helping on the RAZR M side and other samsung devices on 4.3 is this http://xdaforums.com/showthread.php?t=2565758 . It's worth a shot. Let me know if it works out.
[Dell Venue] jayjr1105:
Any progress guys? Anxious to see some 4.3 root instructions.
[Dell Venue] jcase:
When I have time to acquire one, I will fix and post root, unless someone wants to hook one up to a linux box with adb and fastboot, and give me ssh access for a bit
[Dell Venue] monkeybars:
so.. is anyone working on the v7?
[Dell Venue] jayjr1105:
I have a spare machine running Ubuntu 13.10 x64 in my basement, if you truly think you can be productive with it I'll open up SSH on my firewall and let you in. I just installed fastboot and adb. You might have to walk me through enabling ssh access on ubuntu. I'm assuming it's disabled by default. PM me if interested.

Edit: Figured out SSH and VNC as well, although VNC is only allowing viewing for some reason. Tested SSH from a remote computer and its working.
[Dell Venue] jcase:
I send you a pm
[Dell Venue] hunterk11:
---------- Post added at 09:21 AM ---------- Previous post was at 09:16 AM ----------

[/COLOR]

This root method should probably work for it.
[Dell Venue] monkeybars:
alright, hope's up skyhigh on my part
[Dell Venue] darklordofthesith:
Man, if we can get root on these, that would be awesome. It seems Soooo close......
[Dell Venue] jayjr1105:
Ladies and Gents....
[Dell Venue] jcase:
Just to be clear, so that there isn't confusion. I am not ready to release this, so it may take some time before I do so.
[Dell Venue] cline2:
Is this for real?
[Dell Venue] jcase:
Yes
[Dell Venue] jayjr1105:
I think it's time the Venue (tablet) gets its own dedicated forum section. Should we talk to an admin?
[Dell Venue] streak4m3:
Yes. People are already accidentally flashing old Venue phone stuff on Venue tablets.
[Dell Venue] jayjr1105:
So what's standard procedure for getting a dedicated section other than posting in the device request thread?
[Dell Venue] megaghostgamer:
I'm going to be honest, its good that we might get a forum but for those flashing the wrong things, its pretty much their own fault. The title clearly states "2013 Dell Venue Tablet" can't get much harder...
[Dell Venue] hunterk11:
Root: Check

CWM:?
[Dell Venue] jayjr1105:
How the heck are they flashing things anyway... There's no cwm or twrp for the tablet yet
[Dell Venue] cline2:
Cool. Can't wait!!!
[Dell Venue] darklordofthesith:
All right! This tablet is going to really rock with root access. Can't wait to tinker with it. Hopefully it will be possible to flash custom kernels on it.
[Dell Venue] hunterk11:
Android area 51 theme ^_^
[Dell Venue] cline2:
Is it easy or hard to root?
[Dell Venue] jayjr1105:
The root process isn't public knowledge yet (at least for 4.3). jcase remotely rooted mine via SSH and said it was relatively easy to find the exploit compared to other devices. The actual root process is another story. Only he can answer that question.
[Dell Venue] jcase:
Current issue is getting it to work with all devices, seems some variations have different hardware and some odd behaviors. Once those are worked out, I will release.

the 8inch one seems to be taken care of, the 7inch is having issues
[Dell Venue] hunterk11:
Will it be done through a simple .exe?
[Dell Venue] jcase:
on the HP device I have boot and recovery are not exposed on block devices
[Dell Venue] jcase:
Probably not, this device isn't a priority for me and im not going to put a ton of time into it
[Dell Venue] jcase:
I only bought it as I needed an intel device on hand, I have no particular likes or dislikes, it is heavier that I like, and I won't actually be using it.
[Dell Venue] madi05:
thanks

This will be great thanks for your efforts maybe we can get some better battery life from this?
[Dell Venue] deltatux:
Hopefully it's not hard to use, tbh, don't think it needs to be a One Click Root, as people should really know what they're doing before launching exploits imo.

deltatux
[Dell Venue] madi05:
So it's for sure stable for the 8 with 4.3? I'm ready for this I am willing to let you have access to root mine if it helps
[Dell Venue] jayjr1105:
Guys if we want a dedicated section for the Venue Tablet (7 & 8) we need to flood the "New Device Forum Requests" thread with requests for it. I have been posting a request at least once a week for quite a while now with no luck.

Maybe someone has an "in" that can help us out as well. Either way it would be nice to make this official to get the ball rolling on the good stuff like ROM's and Recoveries.

Also be sure to thank/donate to jcase! He is the reason we have root on 4.3.
[Dell Venue] jcase:
No donations please, I haven't released anything.
[Dell Venue] hotwired34:
jcase,

I'd be interested in testing the Venue 8 process. I do some automation work for a large school district and if I can follow the process, I might be able to put a little time into packaging it up into a simple tool for others to use.

Let me know.
[Dell Venue] jcase:
No testing is needed, it works fine on Venue 8. I will release it when time allows for me to make it compatible with more devices.
[Dell Venue] cline2:
Cool! can't wait! I need to have my venue 8 rooted so I can have navigate bar autohide!!!! I can be patience!!!
[Dell Venue] madi05:
HI, i never rooted a tablet before but i have my phone ,, so i could use titanium backup to get rid of the bloatware

my question is this ,, if i root my venue 8 is there a app or apps u recommend that i remove with tiantium backup or another app to make it more battery friendly ? this is my only concern really with the venue ,, and what are some other good options for this tablet for reasoning of rooting ?

thanks for your time in this and i will donate when ready

madi05
[Dell Venue] hunterk11:
Greenify will help battery so will android tuner or juice defender both of which can control cpu, I would recommend rom toolbox for its customization. There are so many apps like you have to get luckypatcher for its "modifications".
[Dell Venue] madi05:
ive used greenify on my phone but not big help or maybe i just didnt know how to use it correctly, same with juice defender but u dont have to root for those right? also what is rom toolbox? yes im a noob lol

thanks
[Dell Venue] hunterk11:
Juice defender (the best battery app I have ever used)does not require root though for some controls it does eg governors(control CPU speed) it is only useful if you aren't using your phone a lot, same with greenify, jd stops connections and can manage CPU speed while greenify hibernates (sorta kills) apps it only recently does not require root and doesn't actually work without it still.. So of you don't stop using your phone nothing will help you. ROM toolbox can govern CPU change boot animation, fonts, root file explorer, lots of stuff. And lucky patcher is a app "modifier" not sure the forum rules so that is all I will say about it.
[Dell Venue] Quadriflax:
This might be a stupid question, but will this root solution will be able to withstand system updates, or does that depend entirely on the update itself?

Definitely exciting to see something working out there. Mad respect for the skills to figure this stuff out :)
[Dell Venue] jcase:
Depends on Dell's update setup
[Dell Venue] uan:
Hi. This is my first post here. Got my v8 yesterday. Update to 4.3. Screen looks a little yellow-ish tint compared to kindle fire.

Dell update is good but major customization is missing, i.e. quick setting tile layout. Battery is quite disappointing at the moment.

Jcase root method is worth sharing. I would immediately apply the root once available.

Hope more dev willing to work with v8.
[Dell Venue] hunterk11:
What is using the battery? Mine lasts a day of continuous use.
[Dell Venue] jayjr1105:
This tablet doesn't deep sleep very well if at all. I notice that I lose a ton of % just overnight. I have wifi policy set to sleep when not plugged in as well. Now that I have root I used Greenify and that doesn't seem to be helping. Not sure if there are wakelocks present or if the tablet just doesn't deep sleep.
[Dell Venue] hunterk11:
I have noticed that too… anyway for an app to simulate it?
[Dell Venue] pbmaxz:
My venue 8 sleeps fairly consistently, but it does seem to be a bit more picky than my other android tablets. Notably media server and the nook app seem to keep it awake, though not always. I think Asphalt 8 (which has garbled colors now anyway) was to blame for the media server issue due to the all the extra junk it downloads, though I can't be sure. More recently some other app is causing the OS process to stay awake somewhat inconsistently. A reboot nearly always clears the issue and then it'll sleep more consistently.
[Dell Venue] Quadriflax:
I generally leave my tablet plugged in at night, so I have it set to keep wifi on during sleep. However, I notice that sometimes when I wake, the wifi is at zero but once it wakes it jumps up to full signal and I get a bunch of email and other notifications that were queued all at once. It doesn't always do this (sometimes notifications are already present upon wake), so I'm not sure what might be causing the behavior, but it seems there's something weird going on with wifi and sleep.
[Dell Venue] jcase:
Sigh, yes this is accurate this is one of the vulnerabilities I found and was not releasing. However it does not work on Dell units (at least as far as I tested), they do not set ro.debuggable=1 during debug mode boot..

I'll post a write up shortly on it.

Proof I'm not jacking someone else's credit, check date on video (edit I guess it shows the date made public, not uploaded)

[YOUTUBE]OxZBDFYmL5k[/YOUTUBE]

https://plus.google.com/110348415484169880343/posts/17iS9HP6Wq7
[Dell Venue] jcase:
Great find btw! Its a serious security issue.
[Dell Venue] hunterk11:
Do you think that is present on all hp's a friend wants a tablet and I wont let the, get an hp if they have that bad of a security breach.
[Dell Venue] jayjr1105:
So how might I be able to freeze/disable the Dell update service so my root doesn't get borked?
[Dell Venue] jcase:
What firmware version now?
[Dell Venue] jcase:
Same firmware as mine, i believe both the debug root and the TwerkMyMoto will work on it
[Dell Venue] cline2:
I have it and wait for someone to find a way to root it. Need root for auto hide the Android navigation bar. Dell Venue 8 is a great tablet.